Jul 22 – 27, 2018
MacMillian
US/Eastern timezone

Capture and decay of electroweak WIMPonium

Not scheduled
20m
117 (MacMillian)

117

MacMillian

Brown University Providence, Rhode Island, USA
Talk Theory 2.6 Theory

Speaker

Patrick Fitzpatrick (Massachusetts Institute of Technology)

Description

The spectrum of Weakly-Interacting-Massive-Particle (WIMP) dark matter generically possesses bound states when the WIMP mass becomes sufficiently large relative to the mass of the electroweak gauge bosons. The presence of these bound states enhances the annihilation rate via resonances in the Sommerfeld enhancement, but they can also be produced directly with the emission of a low-energy photon. I will present a calculation of the rate for SU(2)-triplet dark matter (the wino) to bind into WIMPonium -- which is possible via single-photon emission for wino masses above 5 TeV for relative velocity v < \mathcal{O}\left( 10^{-2} \right) -- and the subsequent decays of these bound states. I will also present results with applications beyond the wino case, e.g. for dark matter inhabiting a general nonabelian dark sector.

Primary authors

Mr Pouya Asadi Matthew Baumgart (Department of Physics, Arizona State University) Patrick Fitzpatrick (Massachusetts Institute of Technology) Emmett Krupczak (Center for Theoretical Physics, Massachusetts Institute of Technology) Tracy Slatyer (Center for Theoretical Physics, Massachusetts Institute of Technology)

Presentation materials

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